Computer Reliability Flashcards Preview

COMP 3521: Software Engineering > Computer Reliability > Flashcards

Flashcards in Computer Reliability Deck (10)
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1

Does a computer always give the correct answer?

  • No

2

Canada's worst IT disaster

  • Therac-25
  • Three deaths

3

Data reliability assessment

  • Assessments of reliability made in the broader context of the particular characteristics of your research project and the risk associated with the possibility of using insufficiently reliable data

4

Corroborating evidence in a data reliability assessment

  • This refers to independent evidence that supports information in a database or derived from one. Such evidence, if available, can be found in alternative databases or expert views. Corroborating evidence is unique to each review, and its strength - or persuasiveness - varies.

5

Risk-level assessment of data

  • Risk is the likelihood that using data of questionable reliability could have substantial negative consequences on the decisions of policymakers and others. To do a risk assessment, consider the following risk conditions, in which the data

6

Data testing:

  • Can be done by applying logical tests to electronic data files or paper copies of reports, looking for inconsistencies in the data.

7

Billing errors in computer systems are caused by:

  • Complex systems.
  • Operator error.

8

Store price accuracy

  • Up to 10% in error

9

Free and open source software

  • Freeware
  • Shareware
  • Open source

10

Software copyright

  • Proprietary software
  • Free and open source software